loop3: detected capacity change from 0 to 512
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4290 at fs/inode.c:389 inc_nlink+0x11d/0x130 fs/inode.c:389
Modules linked in:
CPU: 1 PID: 4290 Comm: syz.3.4 Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:inc_nlink+0x11d/0x130 fs/inode.c:389
Code: 0c ef ff e9 3a ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 4c ff ff ff 48 89 df e8 ad 0c ef ff e9 3f ff ff ff e8 b3 93 a9 ff <0f> 0b eb 82 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 57 41
RSP: 0018:ffffc90002e6fc28 EFLAGS: 00010287
RAX: ffffffff81ce2f5d RBX: ffff88805f460190 RCX: 0000000000080000
RDX: ffffc9000c701000 RSI: 000000000001c440 RDI: 000000000001c441
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100be8c106
R10: ffffed100be8c106 R11: 1ffff1100be8c105 R12: dffffc0000000000
R13: 1ffff1100be8c032 R14: ffff88805f460148 R15: 0000000000000000
FS:  00007f39d9b0c6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdad38a7e8 CR3: 000000005e8e9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 v9fs_vfs_mkdir_dotl+0x52c/0x640 fs/9p/vfs_inode_dotl.c:458
 vfs_mkdir+0x387/0x570 fs/namei.c:4065
 do_mkdirat+0x1d7/0x5a0 fs/namei.c:4090
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4103
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f39dbca3197
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f39d9b0be68 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f39d9b0bef0 RCX: 00007f39dbca3197
RDX: 00000000000001ff RSI: 00002000000000c0 RDI: 00000000ffffff9c
RBP: 0000200000000440 R08: 0000000000000000 R09: 000000000000045e
R10: 0000000000000000 R11: 0000000000000202 R12: 00002000000000c0
R13: 00007f39d9b0beb0 R14: 0000000000000464 R15: 0000200000000000
 </TASK>